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Designation: D7039 ? 15a


Standard Test Method for

Sulfur in Gasoline, Diesel Fuel, Jet Fuel, Kerosine, Biodiesel, Biodiesel Blends, and Gasoline-Ethanol Blends by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry

用暖色激發光譜折射率X電子束熒光光譜儀法分析120#車用汽油進行、車用汽油、航班生物工程制品質、火油、生物工程制品車用汽油、生物工程制品車用汽油參雜物和120#車用汽油進行-工業乙醇參雜物中硫的國家標準常試原則




1.    Scope* 的規模*

1.1   This test method covers the determination of total sulfur by monochromatic wavelength-dispersive X-ray fluorescence (MWDXRF) spectrometry in single-phase gasoline, dieselfuel, refinery process streams used to blend gasoline and diesel, jet fuel, kerosine, biodiesel, biodiesel blends, and gasoline-ethanol blends.

1.1 本試用方式方法包涵用彩色主波長折射率X光譜線熒光（(MWDXRF）光譜圖法法測三相變頻器酒精0號柴油標號、靜音機、用做參雜酒精0號柴油標號和靜音機的過油煉制新工藝流、噴氣主要燃料、火油、怪物靜音機、怪物靜音機參雜物和酒精0號柴油標號乙酸乙酯參雜物中的總硫。

NOTE 1—Volatile samples such as high-vapor-pressure gasolines or light hydrocarbons might not meet the stated precision because of the evaporation of light components during the analysis.

注1——所以闡發過程中中輕成分的化掉，高水蒸汽壓柴油或輕烴等甲醛釋放性產品的樣品還可以性格不比較適合劃界的精密度。

1.2   The range of this test method is between the pooled limit of quantitation (PLOQ) value (calculated by procedures consistent with Practice D6259) of 3.2 mg ?kg total sulfur and the highest level sample in the round robin, 2822 mg ?kg total sulfur.

1.2 本試試看的方法的占比大于等于歸并化學發光法限（PLOQ）值（經過的過程 與實際D6259隔閡的英式較勁）的總硫含水量為3.2 mg / kg和天道輪回中更高分量的打樣定制，總硫分量為2822 mg / kg。



15.     Precision and Bias 計算精度和隨機誤差

15.1 Precision—The precision of this test method was determined by statistical analysis of results obtained in an interlaboratory study7 in accordance with Practice D6300. Precision was calculated by using data from nine analyzers at nine different laboratories. Each laboratory analyzed a sample set in blind duplicate. Precision was calculated by using data from 22 sulfur-containing materials, including five gasolines, seven diesel and biodiesel blends, three jet fuels, one kerosine, three biodiesels, and three gasoline-ethanol blends. The range of the measured average sulfur levels was 1.1 mg/kg to 2822 mg/kg. A pooled limit of quantitation (PLOQ) (calculated by procedures consistent with Practice D6259) of 3.2 mg/kg sulfur was determined.

15.1.1 Repeatability—The  difference  between successive results obtained by the same operator with the same apparatus under constant operating conditions on identical test material would in the long run, in the normal and correct operation of   the test method, exceed the following values only in one case   in twenty. Repeatability (r) may be calculated as shown in Eq7for all materials covering the full scope of this method. See Table  6 for calculated values.

15.1 切確度 - 該測式方式方法的切確度是以嚴格執行規定D6300在我的第一次室間討論會7中贏得的成效的核算闡發肯定會的。經途具體步驟充分利用率9個不同之處我的第一次室的9個闡發儀的參數較真切確度。每另一個個我的第一次室闡發一隊自覺性粘貼范本。經途具體步驟充分利用率來源22種含硫姿料的數據庫在乎切確度，所講姿料涉及這幾種車用0號柴油，幾種柴油發動機車機和生物制品工程柴油發動機車機摻雜物，四種空航油料，那種火油，四種生物制品工程柴油發動機車機和四種車用0號柴油-酒精摻雜物。測出的均硫含水量市場規模為1.1mg / kg至2822mg / kg。自然了硫的歸并降鈣素原檢測限（PLOQ）（經途具體步驟與執行規范D6259矛盾的英式較真）為3.2 mg / kg。

15.1.1 不斷性 - 在持久性運行的中，在自測行為的應該和較準操控的場景下，由保持一致操控者在平衡穩定操控先決條件下，對不異自測基本個人信息，運用保持一致檢測設備拿得的持續時間成效中的區別，三十五至少真正一款超越以內值。對包括本行為的全數總量的這一切基本個人信息，就可以如數學公式7右圖在乎間斷性性（r）。關與在乎值，請參閱表6。

Repeatability (r)=0.49987X0.54 …………(7)

where:

      X =  the average sulfur concentration of two results in mg/kg.

式中：

X = 二個結果的均勻分布硫濃度值，以mg / kg行為 。

15.1.2 Reproducibility—The difference between two single and independent results obtained by different operators working in different laboratories on identical test material would, in the long run, in the normal and correct operation of the test method, exceed the following values only in one case in twenty. Reproducibility (R) may be calculated as shown in Eq广州阡陌社区qm论坛:8 for all materials covering the full scope of this method. See Table 6 for calculated values.

15.1.2 逆轉性 - 在耐用行駛中，在試驗行為的一般的和更準使用的自然環境下，由差別選擇室的差別使用審計員對不異試驗檔案數據資料有的3個零丁和自力科研成果左右的差別，三十表中獨一一家夸越以內值。對包含本行為的全數規模較的所有的 檔案數據資料，并能如公式換算8下圖斤斤計較復現性（R）。業內算計值，請參閱表6。

Reproducibility (R)=0.7384X0.54 …………(8)

where:

X =  the average sulfur concentration of two results in mg/kg.

式中：

X = 3個成效的不均硫滲透壓，以mg / kg特征。

TABLE 6 Precision Values, All Sample Types

表6 精密度值（一些產品的樣品案例）

S,mg/kg

Repeatability r,mg/kg

Eq7values

Reproducibility R, mg/kg

Eq 8values

3.2

0.9

1.4

5.0

1.2

1.8

10.0

1.7

2.6

15.0

2.2

3.2

25.0

2.8

4.2

50.0

4.1

6.1

100

6

9

250

10

15

500

14

21

1000

21

31

2000

30

45

2822

36

54





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